Latch.



L. W. HOLLAND.

LATCH.

APPLICATION FILED luNE 2, i916.

Patented Apr. 3, 1917.

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@za V645 LUTHEE w. HOLLAND, uor PLEASANT JHILL, MISSOURI, .assIeNoE ToHOLLAND 'AUTO- NnTIc LOCK co., or PLEASANT HILL, IIIssoUEI, .eCOEEOEATION OE MISSOURI.

LATCH.

LaaLIao.

Specication of Letters Patent.

Application filed .Tune 2, 1916. Serial No. 101,348.

To all whom it may concern."

Be it known that I, LUTHER W. HOLLAND, I

a citizen of the United States, and a resident of Pleasant Hillin thecounty of Cass and State of Missouri, have invented a new and usefulImprovement in' Latches, of which the following is a specification. l

My invention relates to improvements in latches and it consists in thecombinations, constructions andarrangements herein described andclaimed.

All object of my invention'is to provide a latch having a detent whichengages a strike-plate so as to release the latch-bolt and permit 1thelatter to move forwardly into locking position, said latch-bolt and saiddetent being operated by a single spring.

A further object of my invention is to provide a latch of the typedescribed which is made of few parts and which is, therefore, not easilyliable to get out of order.

A further object of my invention is to provide a latch to be used onautomobile doors or the like which may be readily operated to releasethe door either by means of a knob or by a lever or both.

Other objects and advantages will appear in the following specificationand the novel features of the device will be particularly pointed out inthe appended claims.

My invention is illustrated in the accompanying drawing, forming part ofthis application, in which Figure 1 is a side view of a lock,

Fig. 2 is a plan view,

Fig. 3 is a perspective view of the detent, Fig. 4 is a face view of thelever, and

Fig. 5 is a section on the line 5-,5 of Fig. 1.

lin carrying out my invention I provide a plate l of sheet metal whichforms the base or support of the movable parts. This plate 1 is bent atits forward end to form a flange 2, a portion 3 being stamped from theplate and bent rearwardly so as to leave a boltopening.

Near the rear end of the plate two ears 4 and 5 respectively are stampedfrom the plate and bent up to form supports for the pivot pin 6 of adetent 7 like that shown in Fig. 3. This detent, it will be observed, isprovided with an Opening 7a arranged to receive the pin 6 and has anextension 7 at right angles to the main body portion, this extensionbeing provided with a lug 7 The opposite end of the detent is bentlaterally to form an engaging portion 7d, while at 7e are one or moreteeth. The latch-bolt 8 -is formed of' a single piece of metal which 1sbent at the forward end of the bolt as shown at 8a in the form of acam-curve or bevel and extends rearwardly in a direction parallel to themain body yportion as shown in Fig. 2, being bent laterally toward themain body portion to form a stop member 8*. As will be seen from Fig. 1the bolt has a lateral extension 8c provided with ears 8d arranged topartly encircle a lever or handle 9 whose end is rounded as shown at9ato fit in an arc-shaped guide member 10 which may be struck up from thesheet 1. The latch-bolt 8 passes between the plate l and the pin 6 andthe pin is shown i-n Fig. 1. The lever 9 is provided with a squaredopening 9b near the rounded end 9a` through which the squared shank of aknob may extend. It is also provided with a lug 9c on one side and witha notch 9d on the other side contiguous to which is a flange 9B.

At 11 the plate is cut away to provide room for a spiral spring 12, oneend of which fits over the lug/7c Of the detent and the other end ofwhich ts over the lug 9' on-the lever -9 and bears against the lever.

The operation of the lock will be readily understood.

It is designed to bey used in connection withk a strike-plate 13 whichmay be secured to the jamb of the door and which is provided 4with anopenin to receive the bolt 8. Figs. 1 and 2 show t e bolt in a retractedposition. It will be noted that in this position the spring 12 iscompressed. This tends to force the end 7d of the detent through theplate 1, the position of the detent depending upon the engagement of theMEI gages the strike-plate which forces the detent inwardly, theopposite end of the detent tending to compress the spring 12 toagreaterextent. As soon as the stop 8h is IIe sitions, but it lnumber of teethmight be used wlthout defree, the lever and the bolt 8 will spring.

be retracted 'and will lforce the forward end' of the'detent inbehindthe stop member 8 as the latter moves rearwardly. I have shownthree teeth on the detent so thatthe bolt may be engaged at threedifferent pois obvious that more or less parting from the spirit jof theinvention.

It w1ll be observed that the pin 6 not only serves as a pivot pin forthe detent, but that this same pm for the bolt. It will also be'observedthat the portion 3 which is struck from the plate 1 to provide anopening for-the bolt serves as the forward guide member of the bolt.

I claim z-f 1. A latch' comprising a base plate having an opening, aU-shapeddetent having one end arranged to extend through the opening,v aspring having one end engaging the opposite end of the U-shaped detent,a lever havin one end pivotally mounted on said base p ate and Abeingpressed upon by the opposite end of said spring and a latch- ,-bolthaving a portion arranged tov be engaged by said detent, and beingloosely connected with said lever so.as to move with the latter.

` 2, In a latch, a base plate having a laterally extending ange at oneend provided with a lip punched from the flange to provide a boltopening, a plane parallel with the body portion of the plate andconstituting a guide member, a U- haped detent, a pivot pin for saiddetent carried by the plate and spaced therefrom, one end of said boltpassing between the pin and the plate, means carried by the also servesas a guide member said lip being bent into bolt and arranged to beengaged by the detent for normally Ipreventing the forward movement ofthe bolt, a lever having one end pivotally mounted on said base plateand and a spiral spring arranged to bear atone end on said lever and atthe other end on said U-shaped detent. y

3. In a latch, a base plate having a of ears stamped therefrom andbentat right angles thereto to form a bearing, a pivot pin arranged toextend through the bearing,

a detent plvotally mounted on said pivot pin, a lever pivotally mountedat one end on said base plate, between said pivot pin and `said baseplate, said latch-bolt havlng a portion arranged' to be engaged by saiddetent, a spiral spring disposed between said detent and said lever, oneend of said detent being arranged to extend normally through the baseplate.

4. In a latch, a latch-bolt consisting of a single piece of metal bentat one end to form a cam-curve or bevel and being provided with a bentportion constitutin a stop member, a base plate having a pair` of earsstruck up therefrom, a pivot pin carried by said ears and forming aguide for said bolt, a detent pivotally mounted on said pivot pin andarranged to extend normally through the base plate, a lever having oneend pivotally mounted on said base plate, an extension carried by thebolt and arranged to looselyengage the lever, and a spiral sprin havingone end engaging the lpver and t e opposite end engaging the etent.

LUTHER W. HOLLAND.

Witnesses: p

G. It. CHAMBERLIN, E. A. CALmcom.

eing loosely connected with the bolt.

a latch-bolt extending pair

